377893889 has 2 divisors, whose sum is σ = 377893890. Its totient is φ = 377893888.

The previous prime is 377893883. The next prime is 377893891. The reversal of 377893889 is 988398773.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 354079489 + 23814400 = 18817^2 + 4880^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-377893889 is a prime.

It is a Sophie Germain prime.

Together with 377893891, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (377893883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 188946944 + 188946945.

It is an arithmetic number, because the mean of its divisors is an integer number (188946945).

Almost surely, 2^377893889 is an apocalyptic number.

It is an amenable number.

377893889 is a deficient number, since it is larger than the sum of its proper divisors (1).

377893889 is an equidigital number, since it uses as much as digits as its factorization.

377893889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18289152, while the sum is 62.

The square root of 377893889 is about 19439.4930232247. The cubic root of 377893889 is about 722.9750161468.

The spelling of 377893889 in words is "three hundred seventy-seven million, eight hundred ninety-three thousand, eight hundred eighty-nine".